Seiko Cal. 3891 - 756

This Spring Drive model from 1989 features a 39mm PVD Black case. Powered by the 3891 caliber with 29j jewels beating at 28,800 bph, it delivers a 53 hours power reserve. [seikata-wm-2882034981b0]

Also known as: UFO, Crown

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

12.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

90m

Dial Color

Champagne

Jewels

29j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1989

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