Seiko Cal. 6663 - 844

Seiko 6663-844

The 6663-844 is a sought-after Solar piece from Seiko's golden era. Powered by the 6663 caliber with 31j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-f17c5ba5f2a1]

Also known as: Monster, Emperor

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
36mm
Case Thickness
13.3mm
Lug Width
18mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
40m
Dial Color
Green
Jewels
31j
Frequency
36,000 bph
Power Reserve
60 hours
Year
1978

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