Seiko Cal. 6688 - 837

The 6688-837 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6688 caliber with 23j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-f29925a78b0b]

Also known as: World Timer, Baby Tuna

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

39mm

Case Thickness

10.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Black

Jewels

23j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1967

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