Seiko Cal. 6633 - 511

The 6633-511 is a sought-after Automatic piece from Seiko's golden era. It features a Green dial protected by a Mineral crystal and offers 60m of water resistance. [seikata-wm-5c80c5969a81]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

9.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

60m

Dial Color

Green

Jewels

28j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1974

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