Seiko Cal. 6645 - 688

The 6645-688 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6645 caliber with 23j jewels beating at 21,600 bph, it delivers a 37 hours power reserve. [seikata-wm-2a6f39cefc72]

Also known as: Rally

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

11.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Silver

Jewels

23j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1982

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