Seiko Cal. 4435 - 263

The 4435-263 is a sought-after Spring Drive piece from Seiko's golden era. It features a Silver dial protected by a Mineral crystal and offers 70m of water resistance. [seikata-wm-563453c45b23]

Also known as: Bellmatic, World Timer

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

10.9mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

70m

Dial Color

Silver

Jewels

31j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1979

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