Seiko Cal. 5637 - 307

This Quartz model from 1979 features a 35mm Stainless Steel case. It features a Green dial protected by a Mineral crystal and offers 90m of water resistance. [seikata-wm-4c847d25f6ab]

Also known as: World Timer, Navigator

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

8.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Green

Jewels

32j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1979

Related Models

• Seiko 6363-568
• Seiko 0793-436
• Seiko 6157-570
• Seiko 7055-302
• Seiko 6133-889
• Seiko 6612-665
• Seiko 6190-947
• Seiko 7196-144
• Seiko 4411-358
• Seiko 6649-245
• Seiko 3854-594
• Seiko 7046-472