Seiko Cal. 6690 - 670

The 6690-670 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6690 caliber with 24j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-1a93796e6056]

Also known as: Sumo, Crown

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

44mm

Case Thickness

13.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Navy

Jewels

24j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1999

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