Seiko Cal. 3889 - 107

The 3889-107 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3889 caliber with 31j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-e3c64c60d92d]

Also known as: Tuna, Flighty

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

10.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

170m

Dial Color

Black

Jewels

31j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1980

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