Seiko Cal. 5657 - 815

This Hand-Winding model from 1990 features a 42mm Two-Tone case. It features a White dial protected by a Mineral crystal and offers 30m of water resistance. [seikata-wm-fe8457996b45]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

42mm

Case Thickness

15.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

White

Jewels

31j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1990

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