Seiko Cal. 5640 - 815

Released in 1991, the Cal. 5640 with design code 815 was part of Seiko's domestic market collection. It features a Silver dial protected by a Acrylic crystal and offers 190m of water resistance. [seikata-wm-473c8fd4f940]

Also known as: Rally

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

12.4mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Silver

Jewels

17j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1991

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