Seiko Cal. 6688 - 173

The 6688-173 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6688 caliber with 28j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-8d3542f58bb7]

Also known as: Monster, Panda

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

12.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

White

Jewels

28j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1965

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