Seiko Cal. 5630 - 730

The 5630-730 is a sought-after Kinetic piece from Seiko's golden era. The Bidirectional bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-fc920ec870c4]

Also known as: Monster, Sumo

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

11.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Navy

Jewels

30j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1976

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