Seiko Cal. 3870 - 728

This Automatic model from 1989 features a 35mm PVD Black case. It features a Blue Sunburst dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-a00368abfbe9]

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

35mm

Case Thickness

13.2mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1989

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