[PDF] PARTS LIST / TECHNICAL GUIDE - Automatic Open-heart Cal





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4R35 / 4R36 / 4R37 / 4R38 / 4R39 / 4R71 / 4R72

usually required for watches designed for scuba diving or saturation diving have This is an automatic mechanical watch with a manual winding mechanism.



PARTS LIST / TECHNICAL GUIDE - Automatic Open-heart Cal

SEIKO Automatic Open-heart Cal.4R38A and 4R39A have been developed based on the Cal.4R36A Following parts are determined based on the design of watches ...



The 2011 SEIKO Premier collection. A new look a new mechanical

24-Mar-2011 The movement is both automatic and hand-winding. This new caliber 4R39 is an important addition to SEIKO's suite of mechanical movements and ...



CARACTÉRISTIQUES DES MONTRES MÉCANIQUES(TYPE À

4R39). 1. Retirez la couronne au premier déclic lorsque montre au poignet dans le cas d'un type à auto-remontage et en tendant à fond.



CARACTÉRISTIQUES DES MONTRES MÉCANIQUES(TYPE À

21-Sept-2018 4R39. ? 4R38/4R71. a b a b a) Position normale. : tension du ressort moteur (fonctionnement manuel) b) Premier déclic. : réglage de l'heure.



RETAIL REPAIR PRICE LIST

01-Jul-2016 By SEIKO Australia Pty Ltd. RETAIL REPAIR PRICE LIST ... Kinetic Perpetual Auto Relay calibre 7D48 7D46



CARACTÉRISTIQUES DES MONTRES MÉCANIQUES(TYPE À

4R39). 1. Retirez la couronne au premier déclic lorsque montre au poignet dans le cas d'un type à auto-remontage et en tendant à fond.



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27-Aug-2019 5R de SEIKO le calibre de pointe spécialement conçu ... Le premier chronographe de plongée équipé de la ... Automatique



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27-Nov-2018 The History of Seiko Diver's Watches. PROSPEX. PROSPEX ... 4R39. ??. ??+25??-15?. ??+25??-15?. ??+25??-15?.



Brother Laser Printer - SERVICE MANUAL

4r39. 3.20 Toner Sensor PCB ASSY (Light Emission). The printer loads paper automatically from the paper cassette. The paper cassette can hold.



Seiko 4R39 - Grail Watch Reference

Você poderá sentir-se orgulhoso de possuir um Relógio Autom ático SEIKO Cal 4R35/36/37/38/39 Para garantir o seu excelente rendimento leia atentamente as instruções contidas neste opúsculo antes de usá-lo Conserve este manual à mão para consultas futuras



The 2011 SEIKO Premier collection A new look a new

Automatic with 24-hour indicator Caliber 4R39 Automatic with manual winding capability Hour minute and second hands 24-hour indicator Power reserve: 41 hours 21600 vibrations per hour 24 jewels Movement diameter: 27 4 mm thickness: 4 7 mm Case: Stainless steel See-through case back

  • Seiko 4R39 Operation

    The movement can be manually wound with the crown in position 1. Rotate the crown clockwise to wind the mainspring. The time is set with the crown in second position (pulled all the way out). Rotate the crown clockwise to advance the minute and hour hands and counter-clockwise to turn them backward.

  • Seiko 4R Family Overview

    Introduced in 2008, the Seiko Instruments Inc. (SII) 4R family is a mainstream automatic watch movement used in many Seiko models and offered to third parties by Time Module Inc. (TMI). It is an evolution of the Seiko 7S familyof movements, produced since 1996, and is related to the higher-end Seiko 6R family. All movements in the 4R family operate...

What is a Seiko 4r39a?

Seiko Cal. 4R39A (commonly called just Cal. 4R39) is a mainstream automatic movement with open heart balance at 9:00 and 24 hour subdial at 10:30. It is also offered by Time Module Inc. (TMI) as Cal. NH39A for use by other watch makers. It is closely related to the date-only Cal. 4R35 and the Cal. 4R37 and 4R38.

What is the accuracy of the Seiko 4R36 movement?

The 4R36 movement has an accuracy of -35 to +45 seconds per day, 21,600 vibrations per hour, 24 jewels, and a 40-hour power reserve, making it a solid caliber in entry-level Seikos. It offers additional features, such as hacking and hand-winding, and is generally regarded as a durable, workhorse movement.

What is the difference between Seiko nh36a and 4r36a?

Note that Cal. NH36A is rated at -20/+40 seconds accuracy while Cal. 4R36A is rated at -35/+45 seconds. Seiko produces Cal. NH36 in a variety of color and date window variations with black text on a white dial and day and date wheels or reversed, and with the day and date at 3:00 or 6:00.

How accurate are Seiko NH series movements?

The NH series movements sold by Time Module Inc. (TMI) are rated as slightly more accurate from the factory, at -20/+40 rather than -35/+45 for the Seiko branded movements, and some differ in the finish, number of jewels, and rated power reserve.

PARTS LIST / TECHNICAL GUIDE

4R38A/4R39A

4R38A4R39A

Movement size

Outside diameterØ 27.4 mmØ 27.4 mm

Casing diameterØ 27.0 mmØ 27.0 mm

Height5.32 mm5.32 mm

Driving systemAutomatic winding with manual winding mechanism

Time indication

Hour, Minute, and Small second hands)

(Hour, Minute, and Second hands)

Additional function

Crown operation

Vibration per hourMovement size

Outside:

Ø 27.4 mm

Casing:

Ø 27.0 mm

hour, minute and second hands)

Automatic Open-heart Cal. 4R38A/4R39A

[SPECIFICATIONS] Item

Cal. No.

Loss/Gain

t he wrist at range between 5 °C and

35 °C)Between +45 and -35 seconds

m easurement

T0 (CH)

T24 (CH)

Measurement

se conds: s/d)

± 20 s/d± 30 s/d± 30 s/d(Isochronism

± 3

0 s/d

Regulation system

Lift angle of the escapement53 °

Power reserve

Number of jewels24 jewels (the figures below are Cal. 4R39A.)

Cal. 4R38A/4R39A

PARTS LIST

2/20 SeiKO Automatic Open-heart Cal.4R38A and 4R39A have been developed based on the Cal.4R36A. the movement is both automatic and hand-winding with a power reserve of 41 hours. t he heart of the movement with its gold plated balance wheel is visible through the dial at the nine o'clock position, and the whole movement, with its specially engraved rotor, can be seen through the see-through case back. the three time-of-day hands are complemented by a 24-hour hand set into a subdial at the 11 o'clock position (Cal. 4R39A only).

Fea tURes

Ch aRaCteRistiCs oF a meChaniCal WatCh

1. th is mechanical watch operates using power obtained from a mainspring.

2. W hile loss/gain of a quartz watch is indicated by a monthly or annual rate, accuracy of a m echanical watch is normally indicated by a daily rate (loss/gain per day). 3. N ormal usage accuracy of a mechanical watch varies according to conditions of use (time p eriod that the watch is worn on the wrist, temperature environment, hand movement, and w inding state of the mainspring). 4. W hen the watch is affected by strong magnetism, it temporarily gains or loses time. if the w atch encounters a strong magnetic field, the parts of the watch may be magnetized. in this c ase, repairs such as removal of magnetism are required.

Cal. 4R38A/4R39A

PARTS LIST

3/20

ˠPlease refer to the following pages.

Lubricating:

types of oil Oil quantity

AO-3 (Moebius A)

Liberal quantity

SeiKO Watch Oil S-6 Normal quantity

SeiKO Watch Oil S-4

Disassembling procedures Figs. : 1 45

Reassembling procedures Figs. : 45 1

[TRAIN WHEEL MECHANISM]

2 hoUR Wheel gUaRd sCReW

0012354

3 hoUR W h eel gUaRd

0376184

4 hoUR W h eel

0273183 (

C al.4 R 38
a

0273185 (

C al.4 R 39
a 5 inteRmed i ate 24 h oUR W h eel and P i n i on

0817300 (

C al.4 R 39
a onlY) 6 24
h oUR W h eel

0157184(

C al.4 R 39
a onlY) 7 mi nUte W h eel and P i n i on

0261183

8 C annon P i n i on

0225 414 (

C al.4 R 38
a

0225 417 (

C al.4 R 39
a di sassemble a FteR C enteR Wh eel)

9 dial holding sPaCeR

4408***

loWeR shoCk absoRb i ng sPR i ng loWeR s h oCk absoRb i ng CaP JeWel loWeR h ole JeWel FRame FoR s h oCk-absoRbeR0014 577

0011 220

0014 295

16-6 16-5 16-7 *1 *2*2 *1

Cal. 4R38A/4R39A

PARTS LIST

4/20

ˠPlease refer to the following pages.

L ubricating: t ypes of oil A

O-3 (Moebius A)

S eiKO Watch Oil S-6 S eiKO Watch Oil S-4 [BALANCE AND ESCAPEMENT]

15 balanCe bRidge

sCReW

0012 420

balanCe

ComPlete W

i t h stUd

0310 198

UPPeR s

h oCk absoRb i ng sPR i ng UPPeR h ole JeWel

FRame FoR s

h oCk- absoRbeRUPPeR s h oCk absoRb i ng CaP

JeWel11

aUtomatiC tRain bRidge

0191 183

12 seCond RedUCt i on W h eel and P i n i on

0514 183

13 Ra tC h et W h eel sCReW

0012 919

14 Ra tC h et Weel

0285 051

17 P allet bR i dge sCReW

0012 354

18 P allet bR i dge

0161 300

19 P allet FoRk

0301 00910

aUtomatiC tRain bRidge sCReW

0012 354

1

1 osCillating Weight With ball beaRing

R efer to se i ko W eb P arts C atalogue.

0509***

16 balanCe CoCk

0171 353

16-2 16-3 16-4 16-1 *1*1 *2 *2 *3 *3

Cal. 4R38A/4R39A

PARTS LIST

5/20

ˠPlease refer to the following pages.

Lubricating:

types of oil

AO-3 (Moebius A)

SeiKO Watch Oil S-6

SeiKO Watch Oil S-4

[WINDING MECHANISM]

20 baRRel and tRain

W h eel bR i dge sCReW

0012 420

CaP JeWelled sPR

i ng

0015 703

CaP JeWel

0011 221

23
sl i d i ng

CRoWn W

h eel sPR i ng

0363 183

22
baRRel and tRa i n W h eel bR i dge W i t h h ole JeWel FRame

0114 183

27
loWeR Pla te FoR baRRel and tRa i n W h eel bR i gde

0436 164

30
t hi Rd W h eel and P i n i on

0231 07028

loWeR Pla te FoR baRRel and tRaquotesdbs_dbs35.pdfusesText_40
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