Seiko Cal. 4422 - 721

Released in 1986, the Cal. 4422 with design code 721 was part of Seiko's domestic market collection. It features a Burgundy dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-8f35ddb96fc5]

Also known as: Sumo, Arnie

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

41mm

Case Thickness

12.1mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

50m

Dial Color

Burgundy

Jewels

35j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1986

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