Seiko Cal. 3865 - 561

The Seiko 3865-561 represents an important milestone in Seiko's 1972 lineup. Powered by the 3865 caliber with 28j jewels beating at 36,000 bph, it delivers a 59 hours power reserve. [seikata-wm-4cdb5cc86ee3]

Also known as: World Timer

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

12.1mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Green

Jewels

28j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1972

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