Seiko Cal. 4423 - 144

Released in 1970, the Cal. 4423 with design code 144 was part of Seiko's domestic market collection. It features a Cream dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-c138bf1c7756]

Also known as: Silverwave, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

10.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Cream

Jewels

33j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1970

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