Seiko Cal. 7177 - 520

This Hand-Winding model from 1965 features a 46mm Gold-Plated case. Powered by the 7177 caliber with 25j jewels beating at 28,800 bph, it delivers a 66 hours power reserve. [seikata-wm-f525d2e28ca6]

Also known as: Sumo, Crown

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

8.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Silver

Jewels

25j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1965

Related Models

• Seiko 6345-711
• Seiko 3814-274
• Seiko 7055-401
• Seiko 5220-289
• Seiko 7026-496
• Seiko 5292-711
• Seiko 4442-402
• Seiko 4467-622
• Seiko 0787-142
• Seiko 6696-789
• Seiko 5658-692
• Seiko 6695-847