Seiko Cal. 7131 - 220

The 7131-220 is a sought-after Spring Drive piece from Seiko's golden era. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-84b918e1dd73]

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

11.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Silver

Jewels

24j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1995

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