Seiko Cal. 4437 - 431

Seiko 4437-431

This Kinetic model from 1992 features a 40mm Gold-Plated case. Powered by the 4437 caliber with 18j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-a4e24a97c0f0]

Specifications

Movement
Kinetic
Case Material
Gold-Plated
Case Width
40mm
Case Thickness
9.9mm
Lug Width
19mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
30m
Dial Color
Black
Jewels
18j
Frequency
21,600 bph
Power Reserve
43 hours
Year
1992

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