Seiko Cal. 6645 - 771

The 6645-771 is a sought-after Spring Drive piece from Seiko's golden era. It features a Burgundy dial protected by a Mineral crystal and offers 40m of water resistance. [seikata-wm-ae99578731b9]

Also known as: Monster, Goldfeather

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

11.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Burgundy

Jewels

34j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1971

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