Seiko Cal. 3865 - 287

The 3865-287 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3865 caliber with 30j jewels beating at 36,000 bph, it delivers a 45 hours power reserve. [seikata-wm-a4ae83aa507f]

Also known as: Samurai, Helmet

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

10.3mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Cream

Jewels

30j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1973

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