Seiko Cal. 6690 - 606

The Seiko 6690-606 represents an important milestone in Seiko's 1997 lineup. Powered by the 6690 caliber with 23j jewels beating at 21,600 bph, it delivers a 37 hours power reserve. [seikata-wm-77b3f9755198]

Also known as: Tuna, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

8.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Navy

Jewels

23j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1997

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