Seiko Cal. 6381 - 264

The 6381-264 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6381 caliber with 26j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-3c3db59bbfe4]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

13.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

140m

Dial Color

White

Jewels

26j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1978

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