Seiko Cal. 7121 - 731

This Hand-Winding model from 1988 features a 43mm Two-Tone case. It features a White dial protected by a Sapphire crystal and offers 120m of water resistance. [seikata-wm-89dd31ad236a]

Also known as: Tuna, UFO

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

43mm

Case Thickness

14.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

White

Jewels

20j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1988

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