Seiko Cal. 3865 - 139

The Seiko 3865-139 represents an important milestone in Seiko's 1974 lineup. Powered by the 3865 caliber with 25j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-556f57f45b12]

Also known as: Panda

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

39mm

Case Thickness

11.7mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Burgundy

Jewels

25j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1974

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