Seiko Cal. 4537 - 705

The 4537-705 is a sought-after Solar piece from Seiko's golden era. Powered by the 4537 caliber with 36j jewels beating at 36,000 bph, it delivers a 71 hours power reserve. [seikata-wm-6fb1ef0979e3]

Also known as: Bullhead

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

37mm

Case Thickness

14.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Black

Jewels

36j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1966

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