Seiko Cal. 5660 - 839

The 5660-839 is a sought-after Solar piece from Seiko's golden era. It features a Burgundy dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-a7b39155f475]

Also known as: Bullhead, World Timer

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

38mm

Case Thickness

9.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

150m

Dial Color

Burgundy

Jewels

31j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1974

Related Models

• Seiko 5641-497
• Seiko 7144-813
• Seiko 3820-518
• Seiko 0721-461
• Seiko 3828-583
• Seiko 6263-228
• Seiko 0774-168
• Seiko 4542-208
• Seiko 6334-429
• Seiko 5694-971
• Seiko 4497-127
• Seiko 7125-758