Seiko Cal. 5640 - 487

The 5640-487 is a sought-after Automatic piece from Seiko's golden era. It features a Silver dial protected by a Acrylic crystal and offers 120m of water resistance. [seikata-wm-91517ac2c66d]

Also known as: UFO, Flighty

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

10.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

120m

Dial Color

Silver

Jewels

17j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1969

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