Seiko Cal. 6381 - 303

The Seiko 6381-303 represents an important milestone in Seiko's 1973 lineup. Powered by the 6381 caliber with 36j jewels beating at 36,000 bph, it delivers a 51 hours power reserve. [seikata-wm-81227f65f1ff]

Also known as: Arnie

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

34mm

Case Thickness

14.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

White

Jewels

36j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1973

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