Seiko Cal. 4437 - 577

The 4437-577 is a sought-after Spring Drive piece from Seiko's golden era. It features a Silver dial protected by a Mineral crystal and offers 80m of water resistance. [seikata-wm-144336df43ce]

Also known as: Panda

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

13.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

80m

Dial Color

Silver

Jewels

26j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1976

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