Seiko Cal. 5278 - 110

This Solar model from 1968 features a 46mm Titanium case. It features a Black dial protected by a Mineral crystal and offers 40m of water resistance. [seikata-wm-f80f1e31abb6]

Also known as: Tuna

Specifications

Movement

Solar

Case Material

Titanium

Case Width

46mm

Case Thickness

15.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Black

Jewels

22j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1968

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