Seiko Cal. 4515 - 228

Released in 1971, the Cal. 4515 with design code 228 was part of Seiko's domestic market collection. Powered by the 4515 caliber with 20j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-9a845acd6606]

Also known as: Helmet, Emperor

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

43mm

Case Thickness

15.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

90m

Dial Color

Silver

Jewels

20j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1971

Related Models

• Seiko 3893-138
• Seiko 6694-764
• Seiko 7062-443
• Seiko 6225-769
• Seiko 4457-553
• Seiko 4475-505
• Seiko 6351-951
• Seiko 6231-433
• Seiko 7170-889
• Seiko 6269-644
• Seiko 5272-892
• Seiko 7035-801