Seiko Cal. 5665 - 383

This Quartz model from 1981 features a 37mm Hardlex-Coated Steel case. The Inner Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-56b0ebc96cd9]

Also known as: Bullhead

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

12.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Navy

Jewels

36j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1981

Related Models

• Seiko 7167-307
• Seiko 5249-904
• Seiko 0790-157
• Seiko 6125-835
• Seiko 4516-329
• Seiko 0763-785
• Seiko 6651-554
• Seiko 6386-617
• Seiko 6154-243
• Seiko 6153-126
• Seiko 4553-667
• Seiko 5218-265