Seiko Cal. 4437 - 557

Seiko 4437-557

This Automatic model from 1966 features a 45mm Stainless Steel case. It features a Blue Sunburst dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-5d259f81be3b]

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
45mm
Case Thickness
12.9mm
Lug Width
18mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
140m
Dial Color
Blue Sunburst
Jewels
36j
Frequency
36,000 bph
Power Reserve
68 hours
Year
1966

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