Seiko Cal. 6131 - 498

The 6131-498 is a sought-after Spring Drive piece from Seiko's golden era. It features a Black dial protected by a Mineral crystal and offers 150m of water resistance. [seikata-wm-76d9c6b9393d]

Also known as: Sumo, Panda

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

15.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Black

Jewels

35j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1978

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