Seiko Cal. 6688 - 263

The 6688-263 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6688 caliber with 34j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-b5d3f1a1e337]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

38mm

Case Thickness

10.2mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Silver

Jewels

34j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1989

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