Seiko Cal. 5640 - 124

The Seiko 5640-124 represents an important milestone in Seiko's 1998 lineup. With its 21mm lug width and 13.7mm profile, it sits comfortably on most wrists. [seikata-wm-9cdab8dadd3a]

Also known as: Golden Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

13.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1998

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