Seiko Cal. 5648 - 537

This Solar model from 1967 features a 40mm PVD Black case. With its 19mm lug width and 11.0mm profile, it sits comfortably on most wrists. [seikata-wm-8c5f304c92d7]

Also known as: Silverwave, Baby Tuna

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

40mm

Case Thickness

11.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

110m

Dial Color

Navy

Jewels

29j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1967

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