Seiko Cal. 5684 - 526

The Seiko 5684-526 represents an important milestone in Seiko's 1987 lineup. Powered by the 5684 caliber with 30j jewels beating at 28,800 bph, it delivers a 53 hours power reserve. [seikata-wm-a222ce03fbc5]

Also known as: Sumo, Goldfeather

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

15.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Silver

Jewels

30j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1987

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