Seiko Cal. 6687 - 713

Seiko 6687-713

This Solar model from 1974 features a 42mm Titanium case. Powered by the 6687 caliber with 20j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-79b87f2af671]

Specifications

Movement
Solar
Case Material
Titanium
Case Width
42mm
Case Thickness
14.8mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
160m
Dial Color
White
Jewels
20j
Frequency
21,600 bph
Power Reserve
56 hours
Year
1974

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