Seiko Cal. 4437 - 673

The Seiko 4437-673 represents an important milestone in Seiko's 1985 lineup. Powered by the 4437 caliber with 34j jewels beating at 36,000 bph, it delivers a 57 hours power reserve. [seikata-wm-15263c4023b4]

Also known as: Flighty

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

37mm

Case Thickness

10.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Navy

Jewels

34j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1985

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