Seiko Cal. 5645 - 754

The 5645-754 is a sought-after Hand-Winding piece from Seiko's golden era. With its 20mm lug width and 11.1mm profile, it sits comfortably on most wrists. [seikata-wm-08204cc447ea]

Also known as: Tuna, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

35mm

Case Thickness

11.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Burgundy

Jewels

26j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1965

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