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





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PARTS LIST / TECHNICAL GUIDE - Automatic Cal. 4R35B/4R36A

SEIKO Automatic Mechanical Cal.4R35B is replacement caliber of Cal.4R35A. The difference between Cal.4R35 and Cal.4R36 is a calendar mechanism. FEATURES.



PARTS LIST / TECHNICAL GUIDE - Automatic Cal. 4R35B/4R36A

SEIKO Automatic Mechanical Cal.4R35B is replacement caliber of Cal.4R35A. The difference between Cal.4R35 and Cal.4R36 is a calendar mechanism. FEATURES.



INSTRUCTIONS FOR ANALOGUE QUARTZ AND MECHANICAL

20?/03?/2018 If the watch is worn daily SEIKO's automatic mechanism will wind the mainspring ... Pressure in bar is a test pressure and should not.



Cal. 4R35/36/37/38/39/71

21?/09?/2018 The winding operation for 4R35 4R36



Major repair charges cover movement service/repair or replacement

MAJOR REPAIR PRICES. Major repair charges cover movement service/repair or replacement including all parts* required



PARTS LIST / TECHNICAL GUIDE - Automatic Open-heart Cal

Testing positions. Dial upward: SEIKO Automatic Open-heart Cal.4R38A and 4R39A have been developed based on the Cal.4R36A.



Seiko gebruiksaanwijzing voor het horloge met het uurwerk 4R36

U bent nu de trotse eigenaar van een Seiko Seiko horloge gaat gebruiken. Bewaar dit ... Instellen van tijd en datum (voor kaliber 4R36) .



Movement Size: Diameter: Height: 12? 5.32mm

Specification. Appearance - 1. Appearance - 2. Casing. Hand Fitting. Hand Setting Stem. Dial. Assembly Plan. Hands. Revised on : NH36A.



CARACTÉRISTIQUES DES MONTRES MÉCANIQUES(TYPE À

Le remontage du ressort est le même pour la 4R354R36



You are now the proud owner of a SEIKO Automatic Divers Watch

20?/03?/2018 SEIKO luminous watches manufactured in accordance with the law



Seiko 4R36 Movement (Everything you need to know!)

HOW TO START THE WATCH (4R15/4R16/7S26/7S35/7S36) lTo initially start your watch: Swing it from side to side in a horizontal arc for about 30 seconds This is an automatic mechanical watch * If the watch is worn on the wrist the mainspring will be wound automatically through normal wrist movement

  • Caliber 4R36 vs Sii NH36

    The caliber 4R36 is basically a Seiko-only version of the NH36. Seiko Instruments (aka SII) sells the NH36 to other manufacturers for use in non-Seiko watches.

  • Caliber 4R36 vs 4R35

    There is also a similar caliber 4R35. The different between the two is that the 4R36 has a day/date calendar complication at 3:00, and the caliber 4R35 only displays the date at 3:00. Everything else is the same, including dimensions, jewels, accuracy, etc.

  • Differences Between 4R36 and 4R36a?

    The A indicates that it is the first generation of this caliber. 4R36 and 4R36A are the same, until Seiko releases a 4R36B which will be a second generation.

  • Crown Position Functions

    0 (against the case): Clockwise = Manual Winding / Counterclockwise = Nothing 1 (pulled out one click): Clockwise = Day setting / Counterclockwise = Date setting 2 (pulled out two clicks): Time setting clockwise and counterclockwise

What is a 4R36 Seiko?

The 4R36 is used in many modern Seiko watches, including the new Seiko 5 Sports lineup. 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.

Is 4R36 a 7s36?

The Seiko caliber 4R36 is an automatic used by Seiko Watch Corp. in their own branded watches. This movement was released circa 2011. This caliber was considered to be an upgrade from the popular 7S36 movement as it offers the user the desirable hacking and hand-winding functionality. Differences Between 4R36 and 4R36A?

What is the difference between 4R36 & 4r35 calibers?

The different between the two is that the 4R36 has a day/date calendar complication at 3:00, and the caliber 4R35 only displays the date at 3:00. Everything else is the same, including dimensions, jewels, accuracy, etc.

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

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