What are the case specifications of the Seiko?

The Seiko features a 41.2mm diameter, 11.8mm thick case with a mineral glass crystal.

What is the water resistance of the Seiko?

The Seiko has a water resistance rating of 100m (swimming).

What movement does the Seiko use?

The Seiko is powered by a Automatic, caliber 4R35, 41h power reserve.

Seiko SRPH87

Automatic

Ref. SRPH87

Case size: 41.2mmMovement: 4R35

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Last updated 8 Oct 2026Suggest a correction

TECHNICAL SPECIFICATIONS

GENERAL

Gender

Men

CASE

Diameter

41.2mm

Thickness

11.8mm

Lug to Lug

48.5mm

Lug Width

20mm

Water Resistance

100m

Crystal

Mineral Glass

MOVEMENT

Movement Type

Automatic

Caliber

4R35

Power Reserve

41h

Frequency

21,600 vph (3 Hz)

Jewels

23 jewels

BRACELET/STRAP

Clasp Type

Fold Clasp

FEATURES & COMPLICATIONS

DateDisplay back

HCB002J

AutomaticSteel

QUICK FACTS

BRAND

Seiko

REFERENCE

SRPH87

MOVEMENT

Automatic

CALIBER

4R35

CRYSTAL

Mineral Glass

WATER RESISTANCE

100m (swimming)

GENDER

Men

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Last updated 8 Oct 2026Suggest a correction

FOR WATCH DEALERS

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Seiko SRPH87

TECHNICAL SPECIFICATIONS

GENERAL

CASE

MOVEMENT

BRACELET/STRAP

FEATURES & COMPLICATIONS

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