Seiko Cal. 7143 - 422

The 7143-422 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7143 caliber with 36j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-0585752eda64]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

9.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Navy

Jewels

36j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1978

Related Models

• Seiko 4574-485
• Seiko 6327-788
• Seiko 4443-256
• Seiko 7175-705
• Seiko 6626-789
• Seiko 4445-875
• Seiko 6119-557
• Seiko 4568-812
• Seiko 0747-586
• Seiko 4512-911
• Seiko 3869-691
• Seiko 3887-798