Seiko Cal. 4478 - 311

Seiko 4478-311

This Hand-Winding model from 1979 features a 40mm Titanium case. With its 21mm lug width and 13.6mm profile, it sits comfortably on most wrists. [seikata-wm-bf1f6b5de9e7]

Also known as: Turtle, Sportsmatic

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
40mm
Case Thickness
13.6mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
70m
Dial Color
White
Jewels
34j
Frequency
21,600 bph
Power Reserve
56 hours
Year
1979

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