Seiko Cal. 0728 - 522

The Seiko 0728-522 represents an important milestone in Seiko's 1987 lineup. It features a Navy dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-a48e83057ac5]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

14.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Navy

Jewels

21j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1987

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