Seiko Cal. 6647 - 676

The 6647-676 is a sought-after Solar piece from Seiko's golden era. Powered by the 6647 caliber with 27j jewels beating at 21,600 bph, it delivers a 44 hours power reserve. [seikata-wm-7b423eff7224]

Also known as: Silverwave, Sportsmatic

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

15.7mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Navy

Jewels

27j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1987

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