Seiko Cal. 6634 - 730

The 6634-730 is a sought-after Kinetic piece from Seiko's golden era. It features a Black dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-711454c3d7d6]

Also known as: Sumo

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

41mm

Case Thickness

10.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Black

Jewels

36j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1990

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