Seiko Cal. 3885 - 920

This Spring Drive model from 1984 features a 42mm Stainless Steel case. Powered by the 3885 caliber with 36j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-00048f866354]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

12.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Black

Jewels

36j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1984

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