Seiko Cal. 5661 - 704

This Automatic model from 1983 features a 38mm Titanium case. Powered by the 5661 caliber with 35j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-b842f68c9904]

Also known as: Bullhead, UFO

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

38mm

Case Thickness

13.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Green

Jewels

35j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1983

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