Seiko Cal. 5687 - 851

The 5687-851 is a sought-after Solar piece from Seiko's golden era. It features a Black dial protected by a Hardlex crystal and offers 160m of water resistance. [seikata-wm-40e9d82a9e87]

Also known as: Sumo, Flighty

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

44mm

Case Thickness

10.2mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

160m

Dial Color

Black

Jewels

21j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1980

Related Models

• Seiko 6652-817
• Seiko 4593-279
• Seiko 0784-495
• Seiko 0762-294
• Seiko 5272-935
• Seiko 4412-101
• Seiko 6260-902
• Seiko 6639-704
• Seiko 6167-477
• Seiko 6132-531
• Seiko 4558-635
• Seiko 6396-348