Seiko Cal. 5642 - 316

The 5642-316 is a sought-after Spring Drive piece from Seiko's golden era. It features a White dial protected by a Acrylic crystal and offers 130m of water resistance. [seikata-wm-a8cfd0e97b93]

Also known as: Sumo, Helmet

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

8.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

White

Jewels

21j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1991

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