Seiko Cal. 5647 - 757

The 5647-757 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5647 caliber with 23j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-1d72b5e48a07]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

13.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

White

Jewels

23j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1966

Related Models

• Seiko 7110-958
• Seiko 3831-934
• Seiko 6687-848
• Seiko 4515-911
• Seiko 5299-369
• Seiko 7135-327
• Seiko 6679-994
• Seiko 6189-646
• Seiko 7196-324
• Seiko 5626-767
• Seiko 6212-470
• Seiko 4573-822