Seiko Cal. 4540 - 778

This Solar model from 1969 features a 39mm PVD Black case. Powered by the 4540 caliber with 17j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-8fd7c2e45ee5]

Also known as: Tuna, Silverwave

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

39mm

Case Thickness

9.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Champagne

Jewels

17j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1969

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