Seiko Cal. 0728 - 639

The 0728-639 is a sought-after Quartz piece from Seiko's golden era. It features a Black dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-81910ac61bec]

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

12.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Black

Jewels

34j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1991

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