Seiko Cal. 4436 - 207

Released in 1977, the Cal. 4436 with design code 207 was part of Seiko's domestic market collection. It features a Green dial protected by a Mineral crystal and offers 170m of water resistance. [seikata-wm-57d6af0542ba]

Also known as: Tuna, Silverwave

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

15.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

170m

Dial Color

Green

Jewels

19j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1977

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