Seiko Cal. 3846 - 601

This Spring Drive model from 1975 features a 44mm Two-Tone case. Powered by the 3846 caliber with 31j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-50a40517580d]

Also known as: Sumo, Helmet

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

11.7mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

150m

Dial Color

White

Jewels

31j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1975

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