Seiko Cal. 6145 - 690

The 6145-690 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6145 caliber with 18j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-bcfe2870e5af]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

10.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

30m

Dial Color

White

Jewels

18j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1976

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