Seiko Cal. 4491 - 937

The 4491-937 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4491 caliber with 17j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-c4249761a852]

Also known as: Monster

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

42mm

Case Thickness

10.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1997

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