Seiko Cal. 5647 - 230

The 5647-230 is a sought-after Quartz piece from Seiko's golden era. With its 21mm lug width and 13.9mm profile, it sits comfortably on most wrists. [seikata-wm-ffb65acfd388]

Also known as: Sumo, Bullhead

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

45mm

Case Thickness

13.9mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Black

Jewels

32j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1979

Related Models

• Seiko 7155-147
• Seiko 4468-428
• Seiko 7129-215
• Seiko 6384-405
• Seiko 3876-721
• Seiko 7161-402
• Seiko 5619-490
• Seiko 7027-742
• Seiko 4428-347
• Seiko 5218-289
• Seiko 4487-247
• Seiko 7156-246