Seiko Cal. 5642 - 622

Seiko 5642-622

The 5642-622 is a sought-after Automatic piece from Seiko's golden era. It features a Green dial protected by a Hardlex crystal and offers 110m of water resistance. [seikata-wm-5a147a3e860b]

Also known as: Sumo, Helmet

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
38mm
Case Thickness
13.1mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
110m
Dial Color
Green
Jewels
30j
Frequency
28,800 bph
Power Reserve
42 hours
Year
1998

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