Seiko Cal. 0721 - 544

This Automatic model from 1979 features a 37mm Titanium case. With its 21mm lug width and 8.7mm profile, it sits comfortably on most wrists. [seikata-wm-6b2cf2ce49cb]

Also known as: Baby Tuna, Emperor

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

37mm

Case Thickness

8.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Navy

Jewels

36j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1979

Related Models

• Seiko 6187-162
• Seiko 4452-659
• Seiko 7041-286
• Seiko 7163-226
• Seiko 6218-581
• Seiko 6653-647
• Seiko 7061-146
• Seiko 0767-127
• Seiko 3815-676
• Seiko 4444-584
• Seiko 4519-877
• Seiko 6324-109