Seiko Cal. 5646 - 777

The 5646-777 is a sought-after Solar piece from Seiko's golden era. Powered by the 5646 caliber with 34j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-adebcf049f7d]

Also known as: Golden Tuna

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

41mm

Case Thickness

14.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Cream

Jewels

34j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1995

Related Models

• Seiko 7059-734
• Seiko 5675-254
• Seiko 7193-812
• Seiko 4541-983
• Seiko 3896-159
• Seiko 7016-672
• Seiko 4478-726
• Seiko 7119-612
• Seiko 6690-483
• Seiko 6395-408
• Seiko 5247-406
• Seiko 7086-121