Seiko Cal. 4437 - 752

The Seiko 4437-752 represents an important milestone in Seiko's 1991 lineup. Powered by the 4437 caliber with 28j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-44f05c40dcc4]

Also known as: Bellmatic, Sea Horse

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

14.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Black

Jewels

28j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1991

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