Seiko Cal. 6381 - 105

This Spring Drive model from 1975 features a 39mm Stainless Steel case. Powered by the 6381 caliber with 36j jewels beating at 21,600 bph, it delivers a 72 hours power reserve. [seikata-wm-20a08c5fd74b]

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

15.2mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1975

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