Seiko Cal. 4436 - 787

The Seiko 4436-787 represents an important milestone in Seiko's 1970 lineup. It features a Champagne dial protected by a Sapphire crystal and offers 50m of water resistance. [seikata-wm-fe65c76d0a23]

Also known as: Tuna, Bellmatic

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

8.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Champagne

Jewels

23j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1970

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