Seiko Cal. 5640 - 802

The 5640-802 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5640 caliber with 21j jewels beating at 36,000 bph, it delivers a 57 hours power reserve. [seikata-wm-c88ea3a4b4e0]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

35mm

Case Thickness

15.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Cream

Jewels

21j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1966

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