Seiko Cal. 6690 - 415

The 6690-415 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6690 caliber with 28j jewels beating at 28,800 bph, it delivers a 60 hours power reserve. [seikata-wm-66f97bb559b0]

Also known as: World Timer, Flighty

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

41mm

Case Thickness

9.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Navy

Jewels

28j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1969

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