Seiko Cal. 5645 - 139

The 5645-139 is a sought-after Quartz piece from Seiko's golden era. Powered by the 5645 caliber with 33j jewels beating at 21,600 bph, it delivers a 64 hours power reserve. [seikata-wm-32c90ba113de]

Also known as: Turtle, Samurai

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

42mm

Case Thickness

15.2mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Cream

Jewels

33j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1970

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