Seiko Cal. 3825 - 225

The 3825-225 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3825 caliber with 21j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-c68d45a8b72b]

Also known as: Sumo, Helmet

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

8.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Navy

Jewels

21j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1984

Related Models

• Seiko 5629-955
• Seiko 5666-562
• Seiko 4569-828
• Seiko 4558-105
• Seiko 7146-600
• Seiko 6348-578
• Seiko 7010-941
• Seiko 7171-392
• Seiko 6336-254
• Seiko 5614-646
• Seiko 6124-141
• Seiko 5291-187