Seiko Cal. 4422 - 615

The 4422-615 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Black dial protected by a Mineral crystal and offers 150m of water resistance. [seikata-wm-79f4006f019f]

Also known as: Helmet, Rally

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

13.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Black

Jewels

32j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1967

Related Models

• Seiko 6391-276
• Seiko 3837-615
• Seiko 6247-866
• Seiko 5687-924
• Seiko 3812-401
• Seiko 4571-419
• Seiko 6179-541
• Seiko 7096-941
• Seiko 3813-678
• Seiko 7117-614
• Seiko 6240-385
• Seiko 6220-178