Seiko Cal. 5647 - 320

This Automatic model from 1990 features a 42mm PVD Black case. Powered by the 5647 caliber with 31j jewels beating at 28,800 bph, it delivers a 45 hours power reserve. [seikata-wm-c997515a7305]

Also known as: Sportsmatic

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

42mm

Case Thickness

8.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Green

Jewels

31j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1990

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