Seiko Cal. 3860 - 693

The Seiko 3860-693 represents an important milestone in Seiko's 1974 lineup. Powered by the 3860 caliber with 20j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-278c26008cd9]

Also known as: Samurai, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

10.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Green

Jewels

20j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1974

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