Seiko Cal. 3840 - 630

The Seiko 3840-630 represents an important milestone in Seiko's 1971 lineup. With its 22mm lug width and 9.4mm profile, it sits comfortably on most wrists. [seikata-wm-97846af62df7]

Also known as: Panda, Golden Tuna

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

9.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Green

Jewels

19j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1971

Related Models

• Seiko 3858-720
• Seiko 6137-864
• Seiko 6282-850
• Seiko 6262-566
• Seiko 4579-915
• Seiko 7111-242
• Seiko 3854-346
• Seiko 6645-678
• Seiko 6197-260
• Seiko 6247-370
• Seiko 7140-370
• Seiko 7140-903