Seiko Cal. 6654 - 644

This Quartz model from 1978 features a 41mm PVD Black case. Powered by the 6654 caliber with 20j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-2d6b5582aa2f]

Also known as: Samurai

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

41mm

Case Thickness

13.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Champagne

Jewels

20j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1978

Related Models

• Seiko 4533-239
• Seiko 6371-769
• Seiko 4510-468
• Seiko 4540-847
• Seiko 0737-788
• Seiko 4583-370
• Seiko 6223-384
• Seiko 5245-999
• Seiko 5694-402
• Seiko 7120-924
• Seiko 6386-802
• Seiko 4585-675