Seiko Cal. 5650 - 181

The 5650-181 is a sought-after Spring Drive piece from Seiko's golden era. It features a Black dial protected by a Acrylic crystal and offers 140m of water resistance. [seikata-wm-531dd0acf3f9]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

10.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Black

Jewels

36j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1969

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