Seiko Cal. 4594 - 916

This Automatic model from 1978 features a 40mm PVD Black case. Powered by the 4594 caliber with 21j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-e5bcad7fa359]

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

40mm

Case Thickness

11.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1978

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