Seiko Cal. 4581 - 603

The Seiko 4581-603 represents an important milestone in Seiko's 1979 lineup. Powered by the 4581 caliber with 20j jewels beating at 36,000 bph, it delivers a 63 hours power reserve. [seikata-wm-f7f0e0119b01]

Also known as: Bellmatic

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

45mm

Case Thickness

10.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

White

Jewels

20j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1979

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