Seiko Cal. 5640 - 605

The 5640-605 is a sought-after Solar piece from Seiko's golden era. Powered by the 5640 caliber with 22j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-c0b082ecc7fd]

Also known as: Arnie

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

12.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Navy

Jewels

22j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1969

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