Seiko Cal. 4540 - 226

This Automatic model from 1970 features a 45mm PVD Black case. Powered by the 4540 caliber with 17j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-67f4e5b35769]

Also known as: Baby Tuna, Flighty

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

45mm

Case Thickness

8.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1970

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