Seiko Cal. 5646 - 416

The 5646-416 is a sought-after Spring Drive piece from Seiko's golden era. With its 22mm lug width and 12.1mm profile, it sits comfortably on most wrists. [seikata-wm-273cb2fa5f05]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

12.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1975

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