Seiko Cal. 3821 - 185

This Quartz model from 1970 features a 40mm Stainless Steel case. Powered by the 3821 caliber with 28j jewels beating at 36,000 bph, it delivers a 71 hours power reserve. [seikata-wm-e3322f85dd55]

Also known as: Silverwave, Sportsmatic

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

10.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Black

Jewels

28j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1970

Related Models

• Seiko 6332-769
• Seiko 5253-722
• Seiko 3889-946
• Seiko 7184-181
• Seiko 6323-142
• Seiko 6218-866
• Seiko 7136-293
• Seiko 5230-275
• Seiko 5247-986
• Seiko 7072-768
• Seiko 7022-735
• Seiko 6344-765