Seiko Cal. 6381 - 239

The 6381-239 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6381 caliber with 27j jewels beating at 21,600 bph, it delivers a 44 hours power reserve. [seikata-wm-0e570d02335a]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

13.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

100m

Dial Color

Burgundy

Jewels

27j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1979

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