Seiko Cal. 4564 - 791

The 4564-791 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4564 caliber with 36j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-70ccbb193a15]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

14.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1987

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