Seiko Cal. 4577 - 990

This Solar model from 1999 features a 37mm Gold-Plated case. Powered by the 4577 caliber with 22j jewels beating at 21,600 bph, it delivers a 47 hours power reserve. [seikata-wm-bad42a8f0f1b]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

12.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

170m

Dial Color

White

Jewels

22j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1999

Related Models

• Seiko 5646-369
• Seiko 5612-982
• Seiko 4556-757
• Seiko 4438-278
• Seiko 5689-806
• Seiko 6370-282
• Seiko 6256-243
• Seiko 6338-433
• Seiko 4439-526
• Seiko 4460-192
• Seiko 4435-808
• Seiko 7149-156