Seiko Cal. 6688 - 616

The 6688-616 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6688 caliber with 26j jewels beating at 36,000 bph, it delivers a 63 hours power reserve. [seikata-wm-073ae5795596]

Also known as: Sportsmatic

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

13.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1971

Related Models

• Seiko 7173-212
• Seiko 3811-109
• Seiko 5690-279
• Seiko 6385-780
• Seiko 0718-327
• Seiko 6220-997
• Seiko 4477-725
• Seiko 6377-153
• Seiko 6231-662
• Seiko 4462-285
• Seiko 5275-990
• Seiko 0784-647