Seiko Cal. 6645 - 680

The 6645-680 is a sought-after Solar piece from Seiko's golden era. Powered by the 6645 caliber with 18j jewels beating at 36,000 bph, it delivers a 47 hours power reserve. [seikata-wm-2605750fe97f]

Also known as: Goldfeather, Arnie

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

45mm

Case Thickness

13.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Burgundy

Jewels

18j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1976

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