Seiko Cal. 7175 - 631

This Hand-Winding model from 1980 features a 39mm Two-Tone case. Powered by the 7175 caliber with 25j jewels beating at 36,000 bph, it delivers a 42 hours power reserve. [seikata-wm-9d6f2d2d2302]

Also known as: Silverwave

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

39mm

Case Thickness

8.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Navy

Jewels

25j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1980

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