Seiko Cal. 5648 - 356

This Spring Drive model from 1993 features a 35mm PVD Black case. With its 21mm lug width and 8.3mm profile, it sits comfortably on most wrists. [seikata-wm-9de59854f3a4]

Also known as: Tuna, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

8.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

110m

Dial Color

White

Jewels

28j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1993

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