Seiko Cal. 5640 - 434

The 5640-434 is a sought-after Quartz piece from Seiko's golden era. It features a Champagne dial protected by a Mineral crystal and offers 80m of water resistance. [seikata-wm-ac08cdf6c0d3]

Also known as: Goldfeather, Bellmatic

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

35mm

Case Thickness

13.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

80m

Dial Color

Champagne

Jewels

17j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1973

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