Seiko Cal. 5677 - 177

This Spring Drive model from 1981 features a 36mm Gold-Plated case. Powered by the 5677 caliber with 25j jewels beating at 28,800 bph, it delivers a 46 hours power reserve. [seikata-wm-393c4a44bcdd]

Also known as: Monster, Helmet

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

9.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

140m

Dial Color

White

Jewels

25j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1981

Related Models

• Seiko 3840-167
• Seiko 4467-610
• Seiko 6212-363
• Seiko 0727-385
• Seiko 6378-757
• Seiko 6649-869
• Seiko 0729-705
• Seiko 6225-192
• Seiko 6127-772
• Seiko 6324-299
• Seiko 3834-309
• Seiko 6179-436