Seiko Cal. 3856 - 439

This Spring Drive model from 1987 features a 35mm PVD Black case. Powered by the 3856 caliber with 33j jewels beating at 28,800 bph, it delivers a 59 hours power reserve. [seikata-wm-fc531bfd10e7]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

13.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Champagne

Jewels

33j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1987

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