Seiko Cal. 7121 - 671

The 7121-671 is a sought-after Spring Drive piece from Seiko's golden era. With its 20mm lug width and 10.7mm profile, it sits comfortably on most wrists. [seikata-wm-903f1c1b310d]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

10.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

90m

Dial Color

Black

Jewels

25j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1987

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