Seiko Cal. 5648 - 337

This Hand-Winding model from 1992 features a 43mm PVD Black case. With its 22mm lug width and 12.0mm profile, it sits comfortably on most wrists. [seikata-wm-7a5a94aa364b]

Also known as: Bullhead, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

43mm

Case Thickness

12.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Navy

Jewels

21j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1992

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