Seiko Cal. 6131 - 431

The 6131-431 is a sought-after Solar piece from Seiko's golden era. It features a Black dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-823cd93b3654]

Also known as: Sportsmatic

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

44mm

Case Thickness

11.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Black

Jewels

23j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1979

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