Seiko Cal. 7131 - 810

The Seiko 7131-810 represents an important milestone in Seiko's 1997 lineup. It features a Green dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-864e9db45e2c]

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

9.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Green

Jewels

31j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1997

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