Seiko Cal. 6660 - 420

The 6660-420 is a sought-after Automatic piece from Seiko's golden era. It features a Champagne dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-6ef63163f085]

Also known as: Sumo, Crown

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

15.6mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Champagne

Jewels

17j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1973

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