Seiko Cal. 4422 - 507

The 4422-507 is a sought-after Quartz piece from Seiko's golden era. It features a Navy dial protected by a Mineral crystal and offers 30m of water resistance. [seikata-wm-da6fadf21d0d]

Also known as: Monster, Helmet

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

8.2mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Navy

Jewels

24j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1990

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