Seiko Cal. 0721 - 234

This Automatic model from 1966 features a 44mm PVD Black case. Powered by the 0721 caliber with 17j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-e16d12139ab5]

Also known as: Samurai, Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

44mm

Case Thickness

8.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Champagne

Jewels

17j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1966

Related Models

• Seiko 6112-749
• Seiko 0776-647
• Seiko 7042-814
• Seiko 7173-991
• Seiko 7134-327
• Seiko 3836-262
• Seiko 6233-809
• Seiko 7181-905
• Seiko 5250-747
• Seiko 4553-128
• Seiko 6246-904
• Seiko 3875-122