Seiko Cal. 6161 - 556

This Hand-Winding model from 1970 features a 40mm Stainless Steel case. With its 20mm lug width and 10.0mm profile, it sits comfortably on most wrists. [seikata-wm-17718f029647]

Also known as: Baby Tuna, Emperor

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

10.0mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

40m

Dial Color

Navy

Jewels

23j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1970

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