Seiko Cal. 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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