Seiko Cal. 5646 - 121

The 5646-121 is a sought-after Automatic piece from Seiko's golden era. It features a Navy dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-f5def2a777b3]

Also known as: UFO

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

11.3mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

150m

Dial Color

Navy

Jewels

20j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1979

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