Seiko Cal. 6641 - 648

The 6641-648 is a sought-after Solar piece from Seiko's golden era. Powered by the 6641 caliber with 23j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-0fcf763803b9]

Also known as: Rally

Specifications

Movement

Solar

Case Material

Titanium

Case Width

42mm

Case Thickness

8.2mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Black

Jewels

23j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1999

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