Seiko Cal. 6631 - 140

The 6631-140 is a sought-after Solar piece from Seiko's golden era. It features a Burgundy dial protected by a Mineral crystal and offers 40m of water resistance. [seikata-wm-3721db00c81b]

Also known as: Panda, Silverwave

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

38mm

Case Thickness

8.7mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Burgundy

Jewels

23j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1991

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