Seiko Cal. 3821 - 320

The Seiko 3821-320 represents an important milestone in Seiko's 1970 lineup. Powered by the 3821 caliber with 21j jewels beating at 21,600 bph, it delivers a 45 hours power reserve. [seikata-wm-0c591207d523]

Also known as: Panda, Sea Horse

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

45mm

Case Thickness

8.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Navy

Jewels

21j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1970

Related Models

• Seiko 6318-113
• Seiko 6359-231
• Seiko 5630-618
• Seiko 0790-162
• Seiko 4534-160
• Seiko 7111-274
• Seiko 6625-511
• Seiko 3895-317
• Seiko 6177-766
• Seiko 6695-522
• Seiko 6370-375
• Seiko 5696-807