Seiko Cal. 5640 - 558

The Seiko 5640-558 represents an important milestone in Seiko's 1965 lineup. Powered by the 5640 caliber with 36j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-531ff6055a43]

Also known as: Pogue

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

44mm

Case Thickness

9.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Cream

Jewels

36j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1965

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