Seiko Cal. 6138 - 663

Seiko 6138-663

The 6138-663 is a sought-after Automatic piece from Seiko's golden era. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-5902c8c1d37b]

Also known as: Helmet, Sea Horse

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
40mm
Case Thickness
15.4mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
110m
Dial Color
Blue Sunburst
Jewels
17j
Frequency
28,800 bph
Power Reserve
72 hours
Year
1994

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