Seiko Cal. 5636 - 681

This Quartz model from 1977 features a 36mm Hardlex-Coated Steel case. It features a White dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-f19fc0443770]

Also known as: Sumo, Golden Tuna

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

14.1mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

60m

Dial Color

White

Jewels

17j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1977

Related Models

• Seiko 4485-790
• Seiko 5663-912
• Seiko 0793-136
• Seiko 4591-634
• Seiko 3876-492
• Seiko 0755-987
• Seiko 6113-321
• Seiko 6377-962
• Seiko 4433-224
• Seiko 7070-369
• Seiko 7058-158
• Seiko 0775-541