Seiko Cal. 6381 - 326

The Seiko 6381-326 represents an important milestone in Seiko's 1971 lineup. Powered by the 6381 caliber with 27j jewels beating at 28,800 bph, it delivers a 46 hours power reserve. [seikata-wm-a978bbb847c5]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

10.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

80m

Dial Color

Silver

Jewels

27j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1971

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