Seiko Cal. 6650 - 450

Seiko 6650-450

This Hand-Winding model from 1974 features a 41mm Stainless Steel case. With its 19mm lug width and 11.6mm profile, it sits comfortably on most wrists. [seikata-wm-a1a1c16d8ad4]

Also known as: Sumo, Sportsmatic

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
41mm
Case Thickness
11.6mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
110m
Dial Color
Burgundy
Jewels
17j
Frequency
21,600 bph
Power Reserve
68 hours
Year
1974

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