Seiko Cal. 6375 - 661

The 6375-661 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6375 caliber with 25j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-99a6af7739de]

Also known as: Bullhead

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

14.7mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Cream

Jewels

25j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1968

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