Seiko Cal. 4581 - 541

This Quartz model from 1977 features a 39mm Hardlex-Coated Steel case. Powered by the 4581 caliber with 33j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-1493cb29fb31]

Also known as: Turtle, World Timer

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

11.4mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Navy

Jewels

33j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1977

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