Seiko Cal. 3841 - 977

This Spring Drive model from 1975 features a 43mm Hardlex-Coated Steel case. Powered by the 3841 caliber with 23j jewels beating at 21,600 bph, it delivers a 37 hours power reserve. [seikata-wm-3bc154291881]

Also known as: Silverwave

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

13.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

150m

Dial Color

Silver

Jewels

23j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1975

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