Seiko Cal. 5640 - 653

Released in 1968, the Cal. 5640 with design code 653 was part of Seiko's domestic market collection. Powered by the 5640 caliber with 31j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-4f7e677868af]

Also known as: Panda, Rally

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

42mm

Case Thickness

12.7mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Champagne

Jewels

31j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1968

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