Seiko Cal. 6150 - 437

The 6150-437 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6150 caliber with 35j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-1bd121cf9623]

Also known as: Monster

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

45mm

Case Thickness

15.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Green

Jewels

35j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1975

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