Seiko Cal. 5231 - 769

The 5231-769 is a sought-after Quartz piece from Seiko's golden era. It features a Green dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-12c1dc84a979]

Also known as: Sumo, UFO

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

9.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Green

Jewels

21j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1997

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