Seiko Cal. 4428 - 116

The Seiko 4428-116 represents an important milestone in Seiko's 1974 lineup. It features a Navy dial protected by a Mineral crystal and offers 90m of water resistance. [seikata-wm-c4215347ac45]

Also known as: Bullhead, Sportsmatic

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

42mm

Case Thickness

10.6mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Navy

Jewels

22j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1974

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