Seiko Cal. 6311 - 520

This Hand-Winding model from 1993 features a 43mm Stainless Steel case. Powered by the 6311 caliber with 31j jewels beating at 28,800 bph, it delivers a 65 hours power reserve. [seikata-wm-2c6820ec7104]

Also known as: World Timer, Crown

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

11.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

100m

Dial Color

Black

Jewels

31j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1993

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