Seiko Cal. 5647 - 256

The 5647-256 is a sought-after Spring Drive piece from Seiko's golden era. With its 21mm lug width and 15.4mm profile, it sits comfortably on most wrists. [seikata-wm-6e6ce1592261]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

15.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

160m

Dial Color

Burgundy

Jewels

31j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1967

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