Seiko Cal. 4421 - 183

Released in 1969, the Cal. 4421 with design code 183 was part of Seiko's domestic market collection. It features a White dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-a40dd61fc34d]

Also known as: Turtle

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

8.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

White

Jewels

17j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1969

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