Seiko Cal. 3821 - 907

The 3821-907 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3821 caliber with 29j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-9c4e231d7124]

Also known as: Sportsmatic, Emperor

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

14.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

180m

Dial Color

Cream

Jewels

29j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1981

Related Models

• Seiko 7093-113
• Seiko 4588-696
• Seiko 6140-343
• Seiko 0770-936
• Seiko 3876-972
• Seiko 5216-297
• Seiko 7077-178
• Seiko 3862-572
• Seiko 7025-112
• Seiko 6399-620
• Seiko 4564-940
• Seiko 5680-207