Seiko Cal. 5217 - 991

The 5217-991 is a sought-after Spring Drive piece from Seiko's golden era. The Inner Rotating bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-d429ddd04da0]

Also known as: Sumo, World Timer

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

34mm

Case Thickness

13.3mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

White

Jewels

21j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1987

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