Seiko Cal. 4423 - 212

Released in 1965, the Cal. 4423 with design code 212 was part of Seiko's domestic market collection. It features a Navy dial protected by a Mineral crystal and offers 130m of water resistance. [seikata-wm-24adb5576ee1]

Also known as: Sumo, Pogue

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

9.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

130m

Dial Color

Navy

Jewels

34j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1965

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