Seiko Cal. 7121 - 290

This Automatic model from 1978 features a 46mm Titanium case. Powered by the 7121 caliber with 25j jewels beating at 28,800 bph, it delivers a 66 hours power reserve. [seikata-wm-5a53caa28f2d]

Also known as: Monster, Baby Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

46mm

Case Thickness

13.0mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

100m

Dial Color

White

Jewels

25j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1978

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