Seiko Cal. 6659 - 688

The 6659-688 is a sought-after Solar piece from Seiko's golden era. Powered by the 6659 caliber with 36j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-539d7de600f5]

Also known as: Sportsmatic, Sea Horse

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

41mm

Case Thickness

9.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Black

Jewels

36j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1985

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