Seiko Cal. 6684 - 734

The 6684-734 is a sought-after Automatic piece from Seiko's golden era. The Inner Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-dc43fe1e94b5]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

37mm

Case Thickness

12.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Black

Jewels

32j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1988

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