Seiko Cal. 5646 - 232

Released in 1975, the Cal. 5646 with design code 232 was part of Seiko's domestic market collection. With its 21mm lug width and 10.2mm profile, it sits comfortably on most wrists. [seikata-wm-d57c726ed3dc]

Also known as: Helmet

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

40mm

Case Thickness

10.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1975

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