Seiko Cal. 4576 - 691

The Seiko 4576-691 represents an important milestone in Seiko's 1966 lineup. Powered by the 4576 caliber with 23j jewels beating at 36,000 bph, it delivers a 41 hours power reserve. [seikata-wm-ff05a4b9f78f]

Also known as: Monster, World Timer

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

11.5mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

White

Jewels

23j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1966

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