Seiko Cal. 7028 - 700

The 7028-700 is a sought-after Quartz piece from Seiko's golden era. Powered by the 7028 caliber with 20j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-eb0486b5e8de]

Also known as: Monster, Arnie

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

15.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Navy

Jewels

20j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1997

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