Seiko Cal. 3863 - 903

The Seiko 3863-903 represents an important milestone in Seiko's 1976 lineup. The Coin-Edge bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-4565ffa20ae4]

Also known as: Arnie

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

10.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Green

Jewels

36j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1976

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