Seiko Cal. 4550 - 457

The Seiko 4550-457 represents an important milestone in Seiko's 1972 lineup. Powered by the 4550 caliber with 29j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-df732e1d3524]

Also known as: World Timer

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

37mm

Case Thickness

15.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Navy

Jewels

29j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1972

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