Seiko Cal. 4437 - 786

The 4437-786 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4437 caliber with 26j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-d9d157a140ea]

Also known as: Samurai, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

41mm

Case Thickness

14.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

40m

Dial Color

Silver

Jewels

26j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1978

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