Seiko Cal. 5661 - 789

The 5661-789 is a sought-after Quartz piece from Seiko's golden era. It features a Black dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-2b3f938819b4]

Also known as: Bullhead, Emperor

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

43mm

Case Thickness

8.9mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Black

Jewels

23j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1976

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