Seiko Cal. 6663 - 451

This Spring Drive model from 1986 features a 45mm PVD Black case. Powered by the 6663 caliber with 36j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-3b319fd11655]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

13.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Burgundy

Jewels

36j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1986

Related Models

• Seiko 3861-275
• Seiko 4455-635
• Seiko 6693-443
• Seiko 7152-506
• Seiko 7195-313
• Seiko 5631-966
• Seiko 5223-296
• Seiko 4542-678
• Seiko 5227-175
• Seiko 4521-402
• Seiko 7070-517
• Seiko 6610-410