Seiko Cal. 6381 - 864

The Seiko 6381-864 represents an important milestone in Seiko's 1974 lineup. Powered by the 6381 caliber with 29j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-4916dd260e97]

Also known as: Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

11.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Black

Jewels

29j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1974

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