Seiko Cal. 6645 - 451

Seiko 6645-451

This Solar model from 1983 features a 40mm Titanium case. With its 20mm lug width and 12.8mm profile, it sits comfortably on most wrists. [seikata-wm-2240e5150c8f]

Also known as: Shogun, Helmet

Specifications

Movement
Solar
Case Material
Titanium
Case Width
40mm
Case Thickness
12.8mm
Lug Width
20mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
100m
Dial Color
Black
Jewels
22j
Frequency
36,000 bph
Power Reserve
70 hours
Year
1983

Related Models

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