Seiko Cal. 5278 - 101

Seiko 5278-101

This Hand-Winding model from 1976 features a 40mm PVD Black case. With its 21mm lug width and 9.8mm profile, it sits comfortably on most wrists. [seikata-wm-6e147c8f4ade]

Also known as: Turtle, Sportsmatic

Specifications

Movement
Hand-Winding
Case Material
PVD Black
Case Width
40mm
Case Thickness
9.8mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
150m
Dial Color
Blue Sunburst
Jewels
24j
Frequency
21,600 bph
Power Reserve
66 hours
Year
1976

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