Seiko Cal. 7156 - 809

This Spring Drive model from 1966 features a 36mm Hardlex-Coated Steel case. It features a Green dial protected by a Sapphire crystal and offers 170m of water resistance. [seikata-wm-e1b4875df63b]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

11.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

170m

Dial Color

Green

Jewels

21j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1966

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