Seiko Cal. 4540 - 688

The 4540-688 is a sought-after Automatic piece from Seiko's golden era. With its 21mm lug width and 12.1mm profile, it sits comfortably on most wrists. [seikata-wm-12ce57cf182e]

Also known as: Pogue, Sea Horse

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

46mm

Case Thickness

12.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

110m

Dial Color

Burgundy

Jewels

22j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1984

Related Models

• Seiko 3866-943
• Seiko 3817-215
• Seiko 6358-611
• Seiko 6231-443
• Seiko 4456-369
• Seiko 4488-218
• Seiko 6645-958
• Seiko 7076-786
• Seiko 0721-633
• Seiko 0754-428
• Seiko 7184-569
• Seiko 5229-326