Seiko Cal. 4581 - 905

This Automatic model from 1987 features a 41mm PVD Black case. Powered by the 4581 caliber with 26j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-4adc98d3001d]

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

41mm

Case Thickness

15.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Champagne

Jewels

26j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1987

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