Seiko Cal. 5690 - 148

The 5690-148 is a sought-after Spring Drive piece from Seiko's golden era. It features a Black dial protected by a Acrylic crystal and offers 150m of water resistance. [seikata-wm-65fa82cda58a]

Also known as: Bullhead, Helmet

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

41mm

Case Thickness

15.0mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Black

Jewels

29j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1968

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