Seiko Cal. 4437 - 787

Seiko 4437-787

This Kinetic model from 1987 features a 43mm Two-Tone case. With its 21mm lug width and 15.6mm profile, it sits comfortably on most wrists. [seikata-wm-6ecf9eba646d]

Also known as: Tuna, Bellmatic

Specifications

Movement
Kinetic
Case Material
Two-Tone
Case Width
43mm
Case Thickness
15.6mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
190m
Dial Color
White
Jewels
28j
Frequency
36,000 bph
Power Reserve
55 hours
Year
1987

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