Seiko Cal. 5687 - 681

The 5687-681 is a sought-after Automatic piece from Seiko's golden era. Powered by the 5687 caliber with 31j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-b7b0ea46d7a9]

Also known as: Bellmatic, Golden Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

36mm

Case Thickness

10.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

140m

Dial Color

Champagne

Jewels

31j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1998

Related Models

• Seiko 4513-380
• Seiko 4513-508
• Seiko 7152-205
• Seiko 6210-222
• Seiko 7193-268
• Seiko 6116-138
• Seiko 3838-873
• Seiko 7168-410
• Seiko 4475-593
• Seiko 6272-982
• Seiko 3847-962
• Seiko 4552-639