Seiko Cal. 5656 - 974

This Hand-Winding model from 1991 features a 45mm PVD Black case. Powered by the 5656 caliber with 17j jewels beating at 21,600 bph, it delivers a 65 hours power reserve. [seikata-wm-a0a6875825bc]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

45mm

Case Thickness

9.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Black

Jewels

17j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1991

Related Models

• Seiko 6161-855
• Seiko 4534-496
• Seiko 7139-520
• Seiko 4481-726
• Seiko 4577-630
• Seiko 6381-559
• Seiko 4596-348
• Seiko 6228-305
• Seiko 7063-110
• Seiko 0733-245
• Seiko 6114-624
• Seiko 5676-418