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Seiko watch · Prospex · automatic

Seiko SRPE39

The Seiko SRPE39 measures 45 mm across.

Sources checked · How we source numbers
Case
45 mm1
Lug to lug
not published
Thickness
not published by Seiko
Lug width
not published by Seiko
Seiko SRPE39: size drawingSeiko SRPE39, round case, top and side view to scale: case diameter 45 mm, lug to lug — (unknown), lug width — (unknown), thickness — (unknown), rotating bezel. Bezel, dial and crown size are schematic.Ø 45lug to lug —TOPthickness —
Seiko SRPE39, top and side, to scaleDrawing from data, not a photo · mm

Seiko SRPE39 specifications

Case diameter
45 mm1seller listing
Lug to lug
not published
Thickness
not published by Seiko
Lug width
not published by Seiko
Crystal
Sapphire1seller listing
Water resistance
200 m1seller listing
Movement
Seiko 4R361seller listing · automaticSeiko 4R36 specs
Battery
none: the Seiko 4R36 is automatic
Years made
start not published
Case code
not in our data yet
Bezel
unidirectional rotating1seller listing

On your wrist

No lug-to-lug or case length is published for the Seiko SRPE39, so there is no fit verdict yet.

Actual size on your screen

Calibrate once with a bank card and the drawing shows the Seiko SRPE39 at 1:1, next to a millimetre ruler.

1:1 · not calibrated: sizes are approximate
Seiko SRPE39: size drawingSeiko SRPE39, round case, top and side view to scale: case diameter 45 mm, lug to lug — (unknown), lug width — (unknown), thickness — (unknown), rotating bezel. Bezel, dial and crown size are schematic.Ø 45lug to lug —TOPthickness —
Drawing from data, not a photo · mm
01020304050

Seiko SRPE39 strap size

Seiko publishes no lug width for the Seiko SRPE39. Measure between the lugs with a caliper before buying a third-party strap.

Attachment: not published in our sources.

Find your strap length in the watch strap size tool.

On a bracelet? How to remove watch links to size it to your wrist.

Movement: Seiko 4R36

The Seiko SRPE39 runs on the Seiko 4R36, an automatic movement. 47 other models in our base use it.

Beat rate
21,600 bph2
Power reserve
41 h2
2 sources disagree; show every value
  • manufacturer 41 h2
  • secondary source 40, 41 h4
Jewels
242
Accuracy
−35 to +45 s/day3
Hacking seconds
Yes2
Hand winding
Yes2

Battery

none: the Seiko 4R36 is automatic

A mechanical watch has no cell to replace; it needs a service instead.

Same size as the Seiko SRPE39

Same movement: Seiko 4R36

All 48 models on the Seiko 4R36

Seiko SRPE39 questions

Does the Seiko SRPE39 need a battery?

No. The Seiko SRPE39 has no cell to replace: a wound mainspring drives its automatic Seiko 4R36.

What movement is in the Seiko SRPE39?

The Seiko SRPE39 runs on the Seiko 4R36, an automatic movement.

More Seiko watches

Sources

Documents checked · Report a wrong number

  1. 1Right Time International — SRPE39 listing, Right Time (Denver), dealer spec block (listing, sold out) · html · read
  2. 2Seiko Watch Corporation — Instructions: Seiko Automatic Diver's Watch Cal. 4R15/4R16/4R35/4R36/7S26/7S35/7S36 (English) · pdf · read
  3. 3Seiko Watch Corporation — Instructions: Diver's Watch for Air Diving, Cal. 4R35 / 4R36 (English) · pdf · read
  4. 4Grail Watch — Grail Watch Reference: Seiko Cal. 4R36 · html · read
  5. 5Seiko Watch Corporation — Instructions: Mechanical watch, Cal. 4R35 / 4R36 / 4R37 / 4R38 / 4R71 / 4R72 / 4R39 (English) · pdf · read