Seiko Cal. 5231 - 271

Released in 1983, the Cal. 5231 with design code 271 was part of Seiko's domestic market collection. It features a Green dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-c1ad4113f73c]

Also known as: World Timer, Crown

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

44mm

Case Thickness

11.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Green

Jewels

18j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1983

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