Seiko Cal. 6221 - 138

The 6221-138 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6221 caliber with 24j jewels beating at 21,600 bph, it delivers a 37 hours power reserve. [seikata-wm-fd120159ed9f]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

45mm

Case Thickness

8.4mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

140m

Dial Color

Silver

Jewels

24j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1987

Related Models

• Seiko 6618-884
• Seiko 5266-893
• Seiko 5664-936
• Seiko 6249-401
• Seiko 4576-268
• Seiko 5690-446
• Seiko 4451-815
• Seiko 6141-467
• Seiko 0790-903
• Seiko 4470-496
• Seiko 6377-143
• Seiko 7156-169