Seiko Cal. 7121 - 615

The Seiko 7121-615 represents an important milestone in Seiko's 1975 lineup. The Inner Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-8c8a7e61e3db]

Also known as: Sumo, Sea Horse

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

46mm

Case Thickness

9.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Green

Jewels

35j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1975

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