Seiko Cal. 6321 - 720

Released in 1977, the Cal. 6321 with design code 720 was part of Seiko's domestic market collection. With its 20mm lug width and 14.2mm profile, it sits comfortably on most wrists. [seikata-wm-9998dbdd2ebe]

Also known as: Turtle, Silverwave

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

37mm

Case Thickness

14.2mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

White

Jewels

28j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1977

Related Models

• Seiko 5680-353
• Seiko 3836-475
• Seiko 4526-286
• Seiko 5296-828
• Seiko 5292-704
• Seiko 7169-794
• Seiko 6368-707
• Seiko 4460-977
• Seiko 5685-808
• Seiko 6126-564
• Seiko 4460-867
• Seiko 6183-213