Seiko Cal. 5275 - 637

The 5275-637 is a sought-after Quartz piece from Seiko's golden era. It features a Silver dial protected by a Mineral crystal and offers 190m of water resistance. [seikata-wm-c29dca8afd21]

Also known as: Sumo, UFO

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

46mm

Case Thickness

8.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Silver

Jewels

18j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1973

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