Seiko Cal. 6631 - 280

Seiko 6631-280

This Solar model from 1976 features a 43mm Titanium case. Powered by the 6631 caliber with 27j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-e3d65204cbc3]

Also known as: Navigator

Specifications

Movement
Solar
Case Material
Titanium
Case Width
43mm
Case Thickness
8.3mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
160m
Dial Color
Burgundy
Jewels
27j
Frequency
21,600 bph
Power Reserve
50 hours
Year
1976

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seikata-wm-e3d65204cbc3