Seiko Cal. 3889 - 935

This Spring Drive model from 1966 features a 36mm Stainless Steel case. Powered by the 3889 caliber with 28j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-641d6388e601]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

12.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Silver

Jewels

28j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1966

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