Seiko Cal. 6615 - 494

This Spring Drive model from 1965 features a 34mm Two-Tone case. Powered by the 6615 caliber with 21j jewels beating at 21,600 bph, it delivers a 64 hours power reserve. [seikata-wm-e4dd987ccd35]

Also known as: Monster, Helmet

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

34mm

Case Thickness

13.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Burgundy

Jewels

21j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1965

Related Models

• Seiko 6376-894
• Seiko 5619-814
• Seiko 6663-529
• Seiko 7192-931
• Seiko 6229-176
• Seiko 6258-379
• Seiko 6198-636
• Seiko 0779-359
• Seiko 6195-861
• Seiko 7167-309
• Seiko 6340-584
• Seiko 4480-188