Seiko Cal. 0721 - 677

Seiko 0721-677

This Hand-Winding model from 1967 features a 41mm Hardlex-Coated Steel case. With its 21mm lug width and 12.2mm profile, it sits comfortably on most wrists. [seikata-wm-11784a2ee3ff]

Also known as: Baby Tuna

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
41mm
Case Thickness
12.2mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
40m
Dial Color
Navy
Jewels
18j
Frequency
21,600 bph
Power Reserve
61 hours
Year
1967

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seikata-wm-11784a2ee3ff