Seiko Cal. 4435 - 678

The 4435-678 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4435 caliber with 30j jewels beating at 21,600 bph, it delivers a 36 hours power reserve. [seikata-wm-f07c1ba6ec98]

Also known as: Samurai, Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

14.6mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Green

Jewels

30j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1987

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