Seiko Cal. 4437 - 680

Seiko 4437-680

This Quartz model from 1977 features a 38mm Hardlex-Coated Steel case. Powered by the 4437 caliber with 28j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-5dfc87284447]

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
38mm
Case Thickness
13.6mm
Lug Width
21mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
60m
Dial Color
White
Jewels
28j
Frequency
28,800 bph
Power Reserve
39 hours
Year
1977

Related Models

seikata-wm-5dfc87284447