Seiko Cal. 4540 - 678

The 4540-678 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4540 caliber with 22j jewels beating at 36,000 bph, it delivers a 57 hours power reserve. [seikata-wm-c4a21f0a16a3]

Also known as: Panda, Helmet

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

41mm

Case Thickness

9.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

70m

Dial Color

Burgundy

Jewels

22j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1969

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