Seiko Cal. 3871 - 215

The Seiko 3871-215 represents an important milestone in Seiko's 1975 lineup. Powered by the 3871 caliber with 33j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-97690d70b561]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

14.8mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Champagne

Jewels

33j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1975

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