Seiko Cal. 3865 - 390

The Seiko 3865-390 represents an important milestone in Seiko's 1965 lineup. Powered by the 3865 caliber with 29j jewels beating at 36,000 bph, it delivers a 62 hours power reserve. [seikata-wm-cf6378bbd874]

Also known as: Sea Horse, Arnie

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

13.3mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Silver

Jewels

29j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1965

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