Seiko Cal. 4421 - 507

Seiko 4421-507

This Hand-Winding model from 1974 features a 34mm Stainless Steel case. The Fixed bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-c8485f4d3753]

Also known as: Tuna, Baby Tuna

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
34mm
Case Thickness
12.7mm
Lug Width
20mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
110m
Dial Color
Blue Sunburst
Jewels
23j
Frequency
21,600 bph
Power Reserve
46 hours
Year
1974

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seikata-wm-c8485f4d3753