Seiko Cal. 5633 - 945

The 5633-945 is a sought-after Automatic piece from Seiko's golden era. It features a Green dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-94610b7c00c9]

Also known as: Sumo, Helmet

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

35mm

Case Thickness

10.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

60m

Dial Color

Green

Jewels

23j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1983

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