Seiko Cal. 5620 - 391

The Seiko 5620-391 represents an important milestone in Seiko's 1977 lineup. With its 22mm lug width and 12.1mm profile, it sits comfortably on most wrists. [seikata-wm-b1e2a237a584]

Also known as: Monster, Baby Tuna

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

43mm

Case Thickness

12.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

60m

Dial Color

Black

Jewels

26j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1977

Related Models

• Seiko 5279-999
• Seiko 4581-282
• Seiko 7015-242
• Seiko 4447-727
• Seiko 6618-320
• Seiko 6190-563
• Seiko 0799-838
• Seiko 7125-391
• Seiko 6190-834
• Seiko 6363-969
• Seiko 4417-229
• Seiko 3877-382