Seiko Cal. 4556 - 773

The 4556-773 is a sought-after Spring Drive piece from Seiko's golden era. It features a Green dial protected by a Hardlex crystal and offers 200m of water resistance. [seikata-wm-5729366f762e]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

15.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Green

Jewels

35j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1969

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