Seiko Cal. 3851 - 154

The Seiko 3851-154 represents an important milestone in Seiko's 1982 lineup. Powered by the 3851 caliber with 36j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-1326c196cdfc]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

11.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

White

Jewels

36j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1982

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