Seiko Cal. 6391 - 502

This Automatic model from 1993 features a 44mm PVD Black case. Powered by the 6391 caliber with 20j jewels beating at 36,000 bph, it delivers a 42 hours power reserve. [seikata-wm-4aee0592dcd1]

Also known as: Monster

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

44mm

Case Thickness

9.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Green

Jewels

20j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1993

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