Seiko Cal. 4428 - 538

Released in 1982, the Cal. 4428 with design code 538 was part of Seiko's domestic market collection. It features a Navy dial protected by a Mineral crystal and offers 90m of water resistance. [seikata-wm-3bea0bb92eeb]

Also known as: Crown

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

36mm

Case Thickness

8.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

90m

Dial Color

Navy

Jewels

25j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1982

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