Seiko Cal. 6623 - 355

The 6623-355 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6623 caliber with 33j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-926ca34fcf67]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

12.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

130m

Dial Color

Cream

Jewels

33j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1996

Related Models

• Seiko 6138-202
• Seiko 4566-396
• Seiko 7097-574
• Seiko 3894-672
• Seiko 6234-990
• Seiko 6119-877
• Seiko 7020-224
• Seiko 3870-712
• Seiko 0738-102
• Seiko 0798-494
• Seiko 4414-493
• Seiko 6188-969