Seiko Cal. 3821 - 425

The 3821-425 is a sought-after Spring Drive piece from Seiko's golden era. It features a White dial protected by a Hardlex crystal and offers 70m of water resistance. [seikata-wm-35ff78679ab6]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

8.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

70m

Dial Color

White

Jewels

28j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1969

Related Models

• Seiko 7073-143
• Seiko 6242-736
• Seiko 6340-783
• Seiko 6223-517
• Seiko 7170-648
• Seiko 5654-241
• Seiko 7125-479
• Seiko 7078-126
• Seiko 6350-631
• Seiko 6660-733
• Seiko 3811-289
• Seiko 7071-569