Seiko Cal. 6155 - 436

This Spring Drive model from 1986 features a 39mm Stainless Steel case. It features a White dial protected by a Hardlex crystal and offers 30m of water resistance. [seikata-wm-70f4cef1b8a8]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

11.5mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

30m

Dial Color

White

Jewels

18j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1986

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