Seiko Cal. 0737 - 690

The 0737-690 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 0737 caliber with 27j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-4e8ce2d22645]

Also known as: World Timer, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

14.0mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Champagne

Jewels

27j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1971

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