Seiko Cal. 5617 - 757

The 5617-757 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5617 caliber with 32j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-17e26f4941a3]

Also known as: World Timer, Flighty

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

9.0mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

White

Jewels

32j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1968

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