Seiko Cal. 3856 - 841

This Spring Drive model from 1991 features a 40mm PVD Black case. Powered by the 3856 caliber with 30j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-cd6807b43d35]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

13.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

70m

Dial Color

Green

Jewels

30j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1991

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