Seiko Cal. 6616 - 442

Seiko 6616-442

This Solar model from 1969 features a 37mm Gold-Plated case. With its 18mm lug width and 10.2mm profile, it sits comfortably on most wrists. [seikata-wm-523a4a7bad00]

Also known as: Sumo

Specifications

Movement
Solar
Case Material
Gold-Plated
Case Width
37mm
Case Thickness
10.2mm
Lug Width
18mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
160m
Dial Color
Champagne
Jewels
33j
Frequency
28,800 bph
Power Reserve
47 hours
Year
1969

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