Seiko Cal. 3816 - 620

The 3816-620 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3816 caliber with 19j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-efdec209fe34]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

41mm

Case Thickness

12.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

30m

Dial Color

Burgundy

Jewels

19j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1987

Related Models

• Seiko 6299-969
• Seiko 7150-668
• Seiko 0779-265
• Seiko 6384-911
• Seiko 6191-440
• Seiko 6162-538
• Seiko 5664-243
• Seiko 7131-685
• Seiko 6612-483
• Seiko 6118-491
• Seiko 4513-211
• Seiko 6634-551