Seiko Cal. 4561 - 542

The Seiko 4561-542 represents an important milestone in Seiko's 1971 lineup. Powered by the 4561 caliber with 26j jewels beating at 36,000 bph, it delivers a 51 hours power reserve. [seikata-wm-23daa1c7b824]

Also known as: UFO, Navigator

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

14.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

100m

Dial Color

Champagne

Jewels

26j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1971

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