Seiko Cal. 3825 - 947

The 3825-947 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3825 caliber with 31j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-97b28cd107ef]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

15.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1965

Related Models

• Seiko 6656-638
• Seiko 4459-463
• Seiko 6282-455
• Seiko 4544-584
• Seiko 5636-490
• Seiko 6675-370
• Seiko 6374-608
• Seiko 4545-826
• Seiko 4493-484
• Seiko 6644-582
• Seiko 5284-694
• Seiko 5689-997