Seiko Cal. 6392 - 657

This Spring Drive model from 1975 features a 37mm Hardlex-Coated Steel case. Powered by the 6392 caliber with 36j jewels beating at 21,600 bph, it delivers a 37 hours power reserve. [seikata-wm-4e12473241ec]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

13.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

150m

Dial Color

Black

Jewels

36j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1975

Related Models

• Seiko 4455-932
• Seiko 7117-853
• Seiko 5625-175
• Seiko 7192-453
• Seiko 4499-265
• Seiko 4542-463
• Seiko 0776-929
• Seiko 5696-738
• Seiko 5253-511
• Seiko 0786-932
• Seiko 5219-385
• Seiko 7165-877