Seiko Cal. 6640 - 548

The 6640-548 is a sought-after Automatic piece from Seiko's golden era. It features a Cream dial protected by a Acrylic crystal and offers 60m of water resistance. [seikata-wm-166ee8553e56]

Also known as: Silverwave, Emperor

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

10.1mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Cream

Jewels

35j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1992

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