Seiko Cal. 6623 - 903

Seiko 6623-903

The 6623-903 is a sought-after Solar piece from Seiko's golden era. Powered by the 6623 caliber with 31j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-000334d29489]

Also known as: Navigator

Specifications

Movement
Solar
Case Material
Titanium
Case Width
42mm
Case Thickness
13.7mm
Lug Width
22mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
70m
Dial Color
Cream
Jewels
31j
Frequency
21,600 bph
Power Reserve
63 hours
Year
1970

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seikata-wm-000334d29489