Seiko Cal. 4550 - 476

The 4550-476 is a sought-after Quartz piece from Seiko's golden era. It features a Green dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-7842ec10290e]

Also known as: Helmet, World Timer

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

44mm

Case Thickness

9.0mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

140m

Dial Color

Green

Jewels

17j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1990

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