Seiko Cal. 3861 - 254

The Seiko 3861-254 represents an important milestone in Seiko's 1968 lineup. Powered by the 3861 caliber with 26j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-f31c44aee17a]

Also known as: Sportsmatic, Bellmatic

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

42mm

Case Thickness

11.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Champagne

Jewels

26j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1968

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