Seiko Cal. 6331 - 642

The 6331-642 is a sought-after Solar piece from Seiko's golden era. Powered by the 6331 caliber with 29j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-6ce2130374ca]

Also known as: Goldfeather, Arnie

Specifications

Movement

Solar

Case Material

Titanium

Case Width

39mm

Case Thickness

10.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Green

Jewels

29j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1992

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