Seiko Cal. 4420 - 122

This Hand-Winding model from 1975 features a 46mm Hardlex-Coated Steel case. It features a Navy dial protected by a Mineral crystal and offers 40m of water resistance. [seikata-wm-6e16b584e9c0]

Also known as: Sea Horse, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

14.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Navy

Jewels

27j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1975

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