Seiko Cal. 5645 - 522

The Seiko 5645-522 represents an important milestone in Seiko's 1971 lineup. With its 22mm lug width and 9.8mm profile, it sits comfortably on most wrists. [seikata-wm-27b1287608cc]

Also known as: Sea Horse, Baby Tuna

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

9.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Silver

Jewels

24j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1971

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