Seiko Cal. 4566 - 640

This Automatic model from 1994 features a 46mm Stainless Steel case. Powered by the 4566 caliber with 31j jewels beating at 36,000 bph, it delivers a 62 hours power reserve. [seikata-wm-2eac000a2561]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

15.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Black

Jewels

31j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1994

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