Seiko Cal. 5658 - 649

Released in 1975, the Cal. 5658 with design code 649 was part of Seiko's domestic market collection. With its 21mm lug width and 11.3mm profile, it sits comfortably on most wrists. [seikata-wm-d9aa5eeb4a7b]

Also known as: UFO, Arnie

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

46mm

Case Thickness

11.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Black

Jewels

31j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1975

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