Seiko Cal. 7121 - 648

This Quartz model from 1966 features a 37mm Titanium case. Powered by the 7121 caliber with 36j jewels beating at 36,000 bph, it delivers a 42 hours power reserve. [seikata-wm-0a1ecbe71853]

Also known as: World Timer

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

37mm

Case Thickness

14.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1966

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