Seiko Cal. 4551 - 337

The Seiko 4551-337 represents an important milestone in Seiko's 1978 lineup. Powered by the 4551 caliber with 29j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-d0d61cac38a3]

Also known as: World Timer

Specifications

Movement

Solar

Case Material

Titanium

Case Width

42mm

Case Thickness

14.0mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

110m

Dial Color

Green

Jewels

29j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1978

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