Seiko Cal. 6618 - 904

This Spring Drive model from 1967 features a 44mm Titanium case. Powered by the 6618 caliber with 36j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-32e79456a361]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

44mm

Case Thickness

10.5mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Burgundy

Jewels

36j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1967

Related Models

• Seiko 4449-953
• Seiko 6369-289
• Seiko 7069-285
• Seiko 7169-650
• Seiko 4462-166
• Seiko 4542-712
• Seiko 5219-493
• Seiko 4429-329
• Seiko 6240-346
• Seiko 4453-208
• Seiko 5290-105
• Seiko 0752-587