Seiko Cal. 5671 - 504

The 5671-504 is a sought-after Spring Drive piece from Seiko's golden era. With its 18mm lug width and 11.2mm profile, it sits comfortably on most wrists. [seikata-wm-178a2b76d621]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

11.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

90m

Dial Color

Silver

Jewels

18j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1980

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