Seiko Cal. 4556 - 236

The 4556-236 is a sought-after Spring Drive piece from Seiko's golden era. It features a Burgundy dial protected by a Acrylic crystal and offers 130m of water resistance. [seikata-wm-80413fce6413]

Also known as: Sumo, Helmet

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

11.1mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

130m

Dial Color

Burgundy

Jewels

24j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1976

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