Seiko Cal. 3865 - 442

This Spring Drive model from 1966 features a 39mm PVD Black case. Powered by the 3865 caliber with 23j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-535c6f5b717b]

Also known as: Goldfeather

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

9.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1966

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