Seiko Cal. 6631 - 412

Seiko 6631-412

The 6631-412 is a sought-after Solar piece from Seiko's golden era. Powered by the 6631 caliber with 30j jewels beating at 36,000 bph, it delivers a 59 hours power reserve. [seikata-wm-39ba26a076b5]

Also known as: Samurai, Pogue

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
42mm
Case Thickness
12.7mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
200m
Dial Color
Burgundy
Jewels
30j
Frequency
36,000 bph
Power Reserve
59 hours
Year
1966

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seikata-wm-39ba26a076b5