Seiko Cal. 4550 - 252

The 4550-252 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4550 caliber with 22j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-90aec4fd6c7d]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

13.8mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

White

Jewels

22j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1976

Related Models

• Seiko 6111-827
• Seiko 3828-105
• Seiko 7072-130
• Seiko 6353-773
• Seiko 5654-522
• Seiko 6118-226
• Seiko 4592-634
• Seiko 5677-279
• Seiko 7195-789
• Seiko 4583-718
• Seiko 5675-748
• Seiko 6276-814