Seiko Cal. 5251 - 521

The 5251-521 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 5251 caliber with 35j jewels beating at 21,600 bph, it delivers a 44 hours power reserve. [seikata-wm-503378ec8c18]

Also known as: Turtle, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

9.2mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

90m

Dial Color

Black

Jewels

35j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1967

Related Models

• Seiko 5240-443
• Seiko 4515-570
• Seiko 6652-325
• Seiko 5232-361
• Seiko 6116-408
• Seiko 4524-821
• Seiko 4565-220
• Seiko 6663-630
• Seiko 7116-190
• Seiko 5622-974
• Seiko 6271-314
• Seiko 4573-421