Seiko Cal. 3857 - 837

This Spring Drive model from 1984 features a 43mm Stainless Steel case. It features a Green dial protected by a Sapphire crystal and offers 50m of water resistance. [seikata-wm-e3eb09783513]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

12.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Green

Jewels

34j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1984

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