Seiko Cal. 4428 - 716

The Seiko 4428-716 represents an important milestone in Seiko's 1975 lineup. It features a Silver dial protected by a Sapphire crystal and offers 150m of water resistance. [seikata-wm-48dfd397a19f]

Also known as: Samurai, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

36mm

Case Thickness

13.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Silver

Jewels

23j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1975

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