Seiko Cal. 5616 - 349

This Hand-Winding model from 1971 features a 40mm Hardlex-Coated Steel case. With its 21mm lug width and 15.8mm profile, it sits comfortably on most wrists. [seikata-wm-041063f6c8f0]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

15.8mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Silver

Jewels

23j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1971

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