Seiko Cal. 5645 - 690

The 5645-690 is a sought-after Spring Drive piece from Seiko's golden era. The Bidirectional bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-e3fa63bcefcb]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

11.2mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Champagne

Jewels

28j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1993

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