Seiko Cal. 7023 - 555

The Seiko 7023-555 represents an important milestone in Seiko's 1967 lineup. Powered by the 7023 caliber with 35j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-671d0ab6cf46]

Also known as: Sumo, Helmet

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

42mm

Case Thickness

10.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

100m

Dial Color

Green

Jewels

35j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1967

Related Models

• Seiko 6353-182
• Seiko 4410-914
• Seiko 0788-139
• Seiko 5216-130
• Seiko 0757-226
• Seiko 6218-457
• Seiko 5272-539
• Seiko 6189-599
• Seiko 6311-920
• Seiko 7115-515
• Seiko 7075-145
• Seiko 0774-649