Seiko Cal. 5685 - 648

This Automatic model from 1978 features a 34mm Hardlex-Coated Steel case. It features a Black dial protected by a Sapphire crystal and offers 190m of water resistance. [seikata-wm-e788c7749101]

Also known as: Monster, Crown

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

14.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Black

Jewels

22j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1978

Related Models

• Seiko 6235-585
• Seiko 7085-306
• Seiko 4468-338
• Seiko 7066-102
• Seiko 4415-307
• Seiko 5212-897
• Seiko 5669-617
• Seiko 6363-244
• Seiko 0735-221
• Seiko 6637-557
• Seiko 5286-162
• Seiko 6647-283