Seiko Cal. 3865 - 264

The Seiko 3865-264 represents an important milestone in Seiko's 1978 lineup. Powered by the 3865 caliber with 29j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-d5005ada1d33]

Also known as: Bellmatic, World Timer

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

12.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Champagne

Jewels

29j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1978

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