Seiko Cal. 5634 - 710

The 5634-710 is a sought-after Hand-Winding piece from Seiko's golden era. The Inner Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-b498ffb3eca5]

Also known as: UFO, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

46mm

Case Thickness

13.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Cream

Jewels

24j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1987

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