Seiko Cal. 4428 - 344

The Seiko 4428-344 represents an important milestone in Seiko's 1965 lineup. It features a Black dial protected by a Mineral crystal and offers 120m of water resistance. [seikata-wm-d27d6c655e2f]

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

41mm

Case Thickness

11.2mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

120m

Dial Color

Black

Jewels

33j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1965

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