Seiko Cal. 4428 - 515

The 4428-515 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 4428 caliber with 19j jewels beating at 21,600 bph, it delivers a 41 hours power reserve. [seikata-wm-e685f718709c]

Also known as: Sumo, Bellmatic

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

41mm

Case Thickness

9.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Green

Jewels

19j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1997

Related Models

• Seiko 4466-295
• Seiko 4581-364
• Seiko 6266-125
• Seiko 6354-793
• Seiko 4462-577
• Seiko 5222-281
• Seiko 6650-927
• Seiko 0798-593
• Seiko 0742-210
• Seiko 6295-654
• Seiko 6665-293
• Seiko 4511-805