Seiko Cal. 4420 - 326

Released in 1966, the Cal. 4420 with design code 326 was part of Seiko's domestic market collection. It features a Cream dial protected by a Mineral crystal and offers 110m of water resistance. [seikata-wm-ceac02fda8db]

Also known as: Monster

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

15.1mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Cream

Jewels

23j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1966

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