Seiko Cal. 5645 - 682

The Seiko 5645-682 represents an important milestone in Seiko's 1980 lineup. It features a Black dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-a49094bc8a60]

Also known as: Sumo, Silverwave

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

12.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

170m

Dial Color

Black

Jewels

23j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1980

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